This article examines Sulpicius Severus' use of the image of St Jerome in his Dialogi, a work intended to defend Sulpicius' earlier Vita Martini, as well as to censure the low standards of the Gallic clergy and ascetics. Sulpicius, by misrepresenting the contents of Jerome's epistle xxii, was able to offer an indirect critique of his compatriots. Moreover he played to a secondary pro-Rufinian audience by reworking Rufinus' arguments and casting them in Jerome's face. These included such sore points as the reception of Jerome's epistle xxii, his volte-face on the question of Origen and his excommunication by John of Jerusalem. This use of figured speech adds another dimension to this text, one which suggests that Sulpicius was not as friendly towards Jerome as has previously been thought.